wechat bind user

app/models/user.rb

@@ -642,6 +642,14 @@ class User < ApplicationRecord
     login
   end
 
+  def bind_open_user?(type)
+    case type
+    when 'wechat' then wechat_open_user.present?
+    when 'qq' then qq_open_user.present?
+    else false
+    end
+  end
+
   protected
   def validate_password_length
     # 管理员的初始密码是5位

app/services/create_bind_user_service.rb

@@ -17,6 +17,7 @@ class CreateBindUserService < ApplicationService
 
     bind_user = User.try_to_login(params[:username], params[:password])
     raise Error, '用户名或者密码错误' if bind_user.blank?
+    raise Error, '该账号已被绑定' if bind_user.bind_open_user?(params[:type].to_s)
 
     ActiveRecord::Base.transaction do
       open_user.user_id = bind_user.id